Patents by Inventor Yeon-Kwon Ryu

Yeon-Kwon Ryu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Organic light emitting diode
    Patent number: 10483467
    Abstract: Disclosed herein is an organic light-emitting diode, comprising an anode, a hole transport layer, a light-emitting layer including a host and a dopant, an electron transport layer, and a cathode in that order, wherein an electron-density-controlling layer including an anthracene derivative represented by the following Chemical Formula A is disposed between the light-emitting layer and the electron transport layer, and wherein an affinity Ah (eV) of the host of the light-emitting layer, an affinity Aed (eV) of the electron-density-controlling layer, and an affinity Ae (eV) of the electron transport layer satisfy an relationship of Ah?Aed?Ae.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 19, 2019
    Assignee: SFC CO., LTD.
    Inventors: Young-hwan Park, Seo-Yeon Yoon, Jeong-Soo Kim, Yeon-Kwon Ryu, Jea-Geon Lim, Ji-Hwan Kim
  • Anthracene derivatives and organic light emitting devices comprising the same
    Patent number: 10388882
    Abstract: An anthracene derivative represented by Formula 1 is disclosed. An organic light-emitting device including an anode, a cathode, and an organic layer between the anode and the cathode, where the organic layer includes at least one anthracene derivative represented by Formula 1, is also disclosed. A method of manufacturing the organic light-emitting device is also disclosed.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: August 20, 2019
    Assignees: Samsung Display Co., Ltd., SFC Co., Ltd.
    Inventors: Mi-Kyung Kim, Kwan-Hee Lee, Yeon-Kwon Ryu, Ji-Young Kim
  • Organic light emitting compound and organic light emitting device including the same
    Patent number: 10316013
    Abstract: Disclosed is an organic light emitting compound represented by Formula I: Also disclosed is an organic light emitting device including the organic light emitting compound. The organic light emitting device can be driven at a low voltage to achieve high power efficiency. In addition, the organic light emitting device has excellent luminescent properties, such as high luminance and high luminous efficiency. Due to these advantages, the organic light emitting device can be utilized as a display device or a lighting device.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: June 11, 2019
    Assignee: SFC Co., Ltd.
    Inventors: Jeong-Soo Kim, Yeon-kwon Ryu, Sang-Won Ko, Su-Jin Lee, Ji-Hwan Kim, Ji-young Kim
  • ORGANIC LIGHT EMITTING DIODE
    Publication number: 20160308137
    Abstract: Disclosed herein is an organic light-emitting diode, comprising an anode, a hole transport layer, a light-emitting layer including a host and a dopant, an electron transport layer, and a cathode in that order, wherein an electron-density-controlling layer including an anthracene derivative represented by the following Chemical Formula A is disposed between the light-emitting layer and the electron transport layer, and wherein an affinity Ah (eV) of the host of the light-emitting layer, an affinity Aed (eV) of the electron-density-controlling layer, and an affinity Ae (eV) of the electron transport layer satisfy an relationship of Ah?Aed?Ae.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 20, 2016
    Inventors: Young-hwan PARK, Seo-Yeon YOON, Jeong-Soo KIM, Yeon-Kwon RYU, Jea-Geon LIM, Ji-Hwan KIM
  • ORGANIC LIGHT EMITTING COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150333277
    Abstract: Disclosed is an organic light emitting compound represented by Formula I: Also disclosed is an organic light emitting device including the organic light emitting compound. The organic light emitting device can be driven at a low voltage to achieve high power efficiency. In addition, the organic light emitting device has excellent luminescent properties, such as high luminance and high luminous efficiency. Due to these advantages, the organic light emitting device can be utilized as a display device or a lighting device.
    Type: Application
    Filed: May 14, 2015
    Publication date: November 19, 2015
    Inventors: Jeong-Soo KIM, Yeon-kwon Ryu, Sang-Won Ko, Su-Jin Lee, Ji-Hwan Kim, Ji-young Kim
  • ANTHRACENE DERIVATIVES AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
    Publication number: 20140246657
    Abstract: An anthracene derivative represented by Formula 1 is disclosed. An organic light-emitting device including an anode, a cathode, and an organic layer between the anode and the cathode, where the organic layer includes at least one anthracene derivative represented by Formula 1, is also disclosed. A method of manufacturing the organic light-emitting device is also disclosed.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 4, 2014
    Applicants: SFC CO., LTD., SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi-Kyung Kim, Kwan-Hee Lee, Yeon-Kwon Ryu, Ji-Young Kim